In 1864, the US government issued a two cent coin. What was so special about this coin?

Answer 1

The 2-cent coin was the first to bear the familiar US coin motto “In God We Trust.” The original Pollock proposal included a coin with the motto “God Our Trust.” This was altered by Chase, likely because Brown University, from which Chase graduated, uses the motto “In Deo Speramus” or “In God we hope.”

There's more info at the web site below.